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Figs 4 A and B in Trichodina diaptomi (Ciliophora: Peritrichia) from Two Calanoid Copepods from Botswana and South Africa, with Notes on its Life History

Figs 4 A and B. Diagrammatic drawings of the denticles of two different specimens of Trichodina diaptomi Šrámek-Hušek, 1953 from the carapace of Metadiaptomus transvaalensis from the Nata River, Botswana to illustrate variation in denticle shape.

Figs 3 A–E in Trichodina diaptomi (Ciliophora: Peritrichia) from Two Calanoid Copepods from Botswana and South Africa, with Notes on its Life History

Figs 3 A–E. Micrographs of Metadiaptomus transvaalensis with Trichodina diaptomi Šrámek-Hušek, 1953 on the carapace collected from the Nata River, Botswana in August 2012. Whole specimen of M. transvaalenis with several trichodinids visible on dorsal surface of body (A), M. transvaalensis with several trichodinids visible on dorsal surface opposite locomotory appendages of copepod (C) and close-up views of dorsal carapace of M. transvaalensis with trichodinids clearly visible on surface of copepod (B, D, E) with two detached trichodinids visible in D.

Figs 2 A–F in Trichodina diaptomi (Ciliophora: Peritrichia) from Two Calanoid Copepods from Botswana and South Africa, with Notes on its Life History

Figs 2 A–F. Micrographs of silver impregnated adhesive discs (A, B, E and F) and haematoxylin stained specimens (C and D), showing the nuclear apparatus (C) and adoral spiral (D) of Trichodina diaptomi Šrámek-Hušek, 1953 from the Nata River (A–D) and Rustfontein Dam (E and F).

Fig. 3 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 3. Photomicrographs of Trichodina jenynsii n. sp. from Jenynsia multidentata. A–C – Adhesive disc after dry silver impregnation. D – Macronucleus with methylene-blue staining. Scale bars: 10 μm.

Fig. 2 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 2. Photomicrographs of silver nitrate-impregnated adhesive discs of trichodinids from Jenynsia multidentata. A–B – Photomicrographs of Trichodina cribbi. Scale bars: 10 μm.

Fig. 1 in Trichodinids (Ciliophora) of Corydoras paleatus (Siluriformes) and Jenynsia multidentata (Cyprinodontiformes) from Argentina, with Description of Trichodina corydori n. sp. and Trichodina jenynsii n. sp.

Fig. 1. Photomicrographs of Trichodina corydori n. sp. from Corydoras paleatus. A–B – Silver nitrate-impregnated adhesive discs. C – Methylene-blue staining of adoral ciliary spiral. D – and orcein stain of macronucleus. Scale bars: 10 μm.

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Fig. 2 in Morphology and Sequence Data of Mexican Populations of the Ciliate Parasite of Marine Fishes Trichodina rectuncinata (Ciliophora: Trichodinidae)

Fig. 2. Photomicrographs of silver-impregnated adhesive discs and diagrammatic drawings of the denticles of respective morphotypes studied in the present paper; a and a'. From Enneanectes reticulatus, San Carlos, Sonora. b and b'. From Enneanectes reticulatus, San Carlos, Sonora. c and c'. From Tomicodon zebra, Zihuatanejo, Guerrero. d and d'. From Tomicodon zebra, Cuatunalco, Oaxaca.

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Fig. 3 in Morphology and Sequence Data of Mexican Populations of the Ciliate Parasite of Marine Fishes Trichodina rectuncinata (Ciliophora: Trichodinidae)

Fig. 3. Bayesian inference tree of sequences of the 18S gene of trichodinid species of the genus Trichodina and Trichodinella, emphasizing on Trichodina rectuncinata. Numbers near internal nodes show the support value. Codes: ♦ Cuatunalco; * Zihuatanejo; ● San Carlos.

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Fig. 1 in Morphology and Sequence Data of Mexican Populations of the Ciliate Parasite of Marine Fishes Trichodina rectuncinata (Ciliophora: Trichodinidae)

Fig. 1. Map showing the location of Mexico, and localities where populations of Trichodina rectuncinata were obtained.

Fig. 13 in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Fig. 13. Unrooted Maximum-likelihood (ML) consensus tree inferred from 18S SSU rDNA sequences illustrating the phylogenetic position of Trichodina koloti sp. nov. (at the top of the tree in bold), derived from 2551 nucleotide positions. Support values at the nodes are for bootstrap values/Bayesian posterior probabilities (ML/BI). Synonyms for both T. koloti and T. hypsilepis Wellborn, 1967 are indicated in brackets.

Figs 12a–f in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Figs 12a–f. Denticle dimensions, as proposed by van As and Basson (1989; 1992), of Trichodina hypsilepis Wellborn, 1967 (syn. T. heterodentata) as recorded by and redrawn from: a – Population A of Duncan (1977), b – Population B of Duncan (1977), c – from van As and Basson (1989), d – from Tang and Zhao (2007), e – from Pádua et al. (2012), f – from Valladão et al. (2013).

Figs 10a–f in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Figs 10a–f. Denticle dimensions, as by van As and Basson (1989, 1992), of Trichodina koloti sp. nov. representatives from six different populations collected at the Nxamasere Floodplain, where a–e from Sclerophrys gutturalis (Power, 1927) and f – S. poweri (Hewitt, 1935) tadpoles during the 2016 winter (July to August) expedition (scale = 10 µm).

Figs 2–5 in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Figs 2–5. Micrographs of representative Trichodina koloti sp. nov. specimens from each of the six populations measured from the Nxamasere Floodplain; 2 – Haematoxylin stained nuclear material; 3–5 – collected from the skin and gills of Sclerophrys gutturalis (Power, 1927) (scale = 10 µm).

Fig. 1 in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Fig. 1. Map of the Okavango River System in southern Africa, including the Nxamasere Floodplain where Sclerophrys gutturalis (Power, 1923) and S. poweri (Hewitt, 1953) were collected (redrawn and adapted from West et al. 2015) (scale = 200 km).

Figs 11a–f in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Figs 11a–f. Denticle dimensions, as proposed by van As and Basson (1989, 1992), of Trichodina koloti sp. nov. as recorded by and redrawn from: a and b – Arthur and Lom (1984), c – Kruger et al. (1993a), d – Dias et al. (2009), e and f – Pala et al. (2018).

Figs 6–9 in A New Trichodina Species (Peritrichia: Mobilida) from Anuran Tadpole Hosts, Sclerophrys spp. in the Okavango Panhandle, Botswana, with Comments on this Taxon

Figs 6–9. Micrographs of representative Trichodina koloti sp. nov. specimens from each of the six populations measured from the Nxamasere Floodplain; 6–8 – collected from the skin and gills of Sclerophrys gutturalis (Power, 1927); 9 – collected from the skin and gills of S. poweri (Hewitt, 1935) tadpoles during the 2016 winter (July to August) expedition (scale = 10 µm).

Fig 1. Trichodina acuta Lom, 1961. A in Trichodinid Ectoparasites (Ciliophora: Peritrichia) of Non-native Pumpkinseed (Lepomis gibbosus) in Europe

Fig 1. Trichodina acuta Lom, 1961. A – silver impregnated photomicrograph; B – dentical diagram. Scale: 20 μm.

Figs 7a–f in Taxonomic Assessment of Three North American Trichodinids by Reevaluating the Taxon Validity of Trichodina heterodentata Duncan, 1977 (Peritrichia)

Figs 7a–f. Comparisons of denticles redrawn from micrographs taken of a – Trichodina heterodentata Duncan, 1977, Population A, b – T. heterodentata Duncan, 1977, Population B, c – T. heterodentata Duncan, 1977, Population C, d – T. hypsilepis Wellborn, 1967, e – T. salmincola Wellborn, 1967 and f – T. vallata Wellborn, 1967 paratypes housed at the Smithsonian Museum, USA.

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Figure 1 in First record of Trichodina heterodentata (Ciliophora: Trichodinidae) in banded knifefish Gymnotus carapo (Gymnotidae) cultured in Brazil

Figure 1. Trichodina heterodentata collected from the gills of banded knifefish, Gymnotus carapo, farmed in Jataí, state of Goiás, Brazil. Stain: silver nitrate impregnation.